Two people were killed by falling trees in Washington state as a powerful storm hammered the Pacific Northwest. In Bellevue, a tree fell into a home, hitting and killing a woman while she was in the shower Tuesday night, Bellevue fire officials said.

Though that type of weather system doesn’t often develop near Washington, the last one that impacted the Pacific Northwest was earlier this year in January. Bomb cyclones are weather systems that form when the storm’s central pressure drops more than 24 millibars in 24 hours.